Cos 341 Degrees

Sin, Cos, Tan, Cot of an Angle
Function
Angle (°)

What is cos 341°?

Answer

cos 341° ≈
0.9455

Angle in radians: 341° = 341π/180. The point of the angle is in quadrant IV, where cosine is positive.

≈ — rounded to 4 decimal places. cos 341° can't be written with square roots: 341° is not a multiple of 3°.

cos 341° = cos(360° − 19°) = cos 19° ≈ 0.9455

P(cos 341°, sin 341°) ≈ (0.9455, −0.3256)

xyOP

P(cos 341°, sin 341°) ≈ (0.9455, −0.3256)

Highlighted: the projection on the x-axis — cosine, x ≈ 0.9455.

All four functions of 341°
FunctionExact valueDecimal
sin 341°—≈ −0.3256
cos 341°—≈ 0.9455
tan 341°—≈ −0.3443
cot 341°—≈ −2.9042

Reference angle: cos 19° ≈ 0.9455

See Also

Recalculate with different values ↑

Cosine of nearby angles

Anglecos
315°√2/2
324°(√5 + 1)/4
330°√3/2
341°≈ 0.9455
342°√(10 + 2√5)/4
345°(√6 + √2)/4
355°≈ 0.9962

FAQ

What is cos 341°?

cos 341° ≈ 0.9455

Why does cos 341° have no exact value?

A trigonometric value of a whole number of degrees can be written with square roots only when the angle is a multiple of 3°. 341° is not, so no such exact form exists; the value is used as a decimal: cos 341° ≈ 0.9455.

Why does a calculator show −0.1368 for cos 341?

The calculator is in radian mode (RAD): it takes cos 341 as the cosine of 341 radians, cos 341 rad ≈ −0.1368. Switch it to degrees (DEG): cos 341° ≈ 0.9455. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.

See Also